• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geology >Caldera-forming processes and the origin of submarine volcanogenic massive sulfide deposits
【24h】

Caldera-forming processes and the origin of submarine volcanogenic massive sulfide deposits

机译：破火山口的形成过程和海底火山成因的硫化物矿床的成因

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Certain volcanogenic massive sulfide (VMS) ore deposits form in submarine calderas. This association is well known, but the link between caldera formation and the origins of the deposits remains poorly understood. Here we show that the size and location of a VMS deposit within a submarine caldera may be determined by how and when the caldera formed. These spatial-temporal conditions control development of the hydrothermal system associated with the VMS deposit. We propose that caldera opening along outward-dipping faults promotes magma degassing, seawater influx, and high-temperature leaching, resulting in a metal-rich hydrothermal fluid. These outward-dipping faults are considered to provide critical pathways for ore-forming fluids responsible for some caldera-hosted VMS deposits and may also be fundamentally important for the formation of many other caldera-hosted ore deposit types.
机译：在海底破火山口中形成某些火山成块的硫化物（VMS）矿床。这种关联是众所周知的，但是对破火山口形成与沉积物起源之间的 联系仍然知之甚少。在这里，我们表明，海底破火山口中VMS沉积物的大小和位置 可以通过破火山口的形成方式和时间来确定。这些时空条件 控制与 VMS沉积物相关的热液系统的发育。我们认为，沿向外浸出的 断层的破火山口开放会促进岩浆脱气，海水涌入和高温 浸出，从而产生富含金属的热液。这些 向外倾断层被认为为负责某些破火山口中的VMS 沉积的成矿流体提供了关键路径 。对于许多其他破火山口型矿床的形成 很重要。

著录项

  • 来源
    《Geology》 |2003年第4期|375-378|共4页
  • 作者

    John Stix; Ben Kennedy; Mark Hannington; Harold Gibson; Richard Fiske; Wulf Mueller; James Franklin;

  • 作者单位

    Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, Quebec H3A 2A7, Canada;

    Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, Quebec H3A 2A7, Canada;

    Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada;

    Mineral Exploration Research Centre, Department of Earth Sciences, Laurentian University, Sudbury, Ontario P3E 2C6, Canada;

    Department of Mineral Sciences, MRC-119, Smithsonian Institution, Washington, D.C. 20560, USA;

    Sciences de la Terre, Université du Québec à Chicoutimi, Chicoutimi, Quebec G7H 2B1, Canada;

    24 Comanche Drive, Ottawa, Ontario K2E 6E9, Canada;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号